I have a doubt that

#1

How is overlapping occuring in this ques ?

#2

Hey @sukritbansal01

                         lcs("AXYT", "AYZX")
                       /                 
         lcs("AXY", "AYZX")            lcs("AXYT", "AYZ")
         /                              /               
lcs("AX", "AYZX") lcs("AXY", "AYZ")   lcs("AXY", "AYZ") lcs("AXYT", "AY")
#3

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